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[thirdparty/glibc.git] / misc / ftruncate64.c
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688903eb 1/* Copyright (C) 1997-2018 Free Software Foundation, Inc.
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2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
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5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
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8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41bdb6e2 12 Lesser General Public License for more details.
4cca6b86 13
41bdb6e2 14 You should have received a copy of the GNU Lesser General Public
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15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
4cca6b86 17
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18#include <sys/types.h>
19#include <errno.h>
20#include <unistd.h>
4cca6b86 21
ded5b9b7 22/* Truncate the file referenced by FD to LENGTH bytes. */
9756dfe1 23int
9d46370c 24__ftruncate64 (int fd, off64_t length)
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25{
26 if ((off_t) length != length)
27 {
28 __set_errno (EINVAL);
29 return -1;
30 }
50304ef0 31 return __ftruncate (fd, (off_t) length);
9756dfe1 32}
2958e6cc 33weak_alias (__ftruncate64, ftruncate64)